Improvement in evaporating salt water



41; A, M. M 4

UNITED N STATES PATENT OFFICE.

JAMES L. HUMPREY, OF SYRAGUSE, NEW YORK.

IMPROVEMENT IN EVAPORATING SALT WATER.

Specication forming part of Letters Patent No. 119,031, dated September19, 1871.

hereby declare that the following is a full, clear,-

and exact description thereof, which will enable others to make and usethe same, reference being had to the accompanying drawing forming partof this specification, in'which- Figure'l is a sectional side view, andFig. 2 is a top or plan view of an evaporator, showing my invention.

Similar letters of reference indicate like parts.

This invention relates to that class of evaporators in which all theheat or the gaseous products of combustion are blown upon or over thesurface of the liquid to increase evaporation; and the inventionconsistsin discharging the said products of combustion upon the surface of thewater in small jets, so that they are brought more intimately in contacttherewith and the gases more readily saturated with moisture and theeffect proportionally increased.

In the accompanying drawing, A is the furnace. Bisthe evaporating-tank.Gis the blower,

"and D dd the distributingpipes. AThefurnace is made with bridge andcurtain-walls a a, for purifying the flame by throwing down the sparksand solid particles, and to improve the combustion. vThe heated gasespass from the combustion-chamber through the water-tank, by a series ofiiues, b, .intoa chamber, E; andfa blower, G, draws the gases from thischamber E by means of pipes c c, and, forcing them into the pipes D D,discharges them upon the surface of the water in thin jets by means ofsmall iiat jet-tubes d d, which are inclined toward the surface of the.water, so that the hot air is brought in forcible contact with the saidsurface. Pipes D can be arranged over the surface of the liquid, and thelower sides of these pipes have many small holes in place of the nozzlesd for subdividing the hot gases; but I prefer the nozzles or jet-tubesd, as

by their use the gases are impelled or conducted upon the surface of thewater in a more forcible manner, making the contact between them moreintimate. The jets can also be discharged into the series of largekettles commonly in use in stead of using the tank B; however, inconnection with the kettles, the tank B can be used to advantage forheating the water and bringing it nearer to saturation before it entersthe kettles, in which the process is completed orthe salt made asordinarily. The box E is provided with avalve, e, for admitting air tomix with the hot gases, if desired.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1s

Tubes D, provided with nozzles d, in combina tion with fan C,substantially as and for the purpose set forth.

lThe above specification of my invention signed by me this 20th day ofJune, 1871;

Witnesses: JAMES L. HUMPHREY.

A. ALLGEIAE, F. A. MORLEY. (95.)

